Dentifrice



Patented Oct. 29, 1935 UNITED STATES DENTIFRICE Rudolph A. Kuever, Iowa City, Iowa, assimor to The Pepsodent Co., Chicago, 111., a corporation of Illinois No Drawing. Application February 6, 1935, Serial No. 5,267

The present invention relates to dentifrlces or the like.

Among the objects of the invention is to provide a novel dentrifice which contains a substance which has a high degree of polishing and cleansing efiect with no deleterious effect whatsoever on the enamel or cementum of the teeth.

Specifically the substance referred to is insoluble sodium metaphosphate which, in ac- 10 cordance with the present invention, has no deleterious effect whatsoever on the enamel or cementum of the teeth, and which polishes to restore and maintain the natural color and lustre of the teeth by removing the deposits that form 16 thereon without wearing away the surface thereof. It has the chemical formula Na4P401a; is colorless, tasteless, transparent and insoluble in water. When reduced to fine particles it serves ideally as a dentrifice alone or with any of the desired ingredients or a dentrifice. It is compatible with other ingredients desirable in a 5 dentrifice, such as massing agents, diluents, flavoring, etc. The particles are of such a nature as to make scratching or abrading oi the enamel and cementum of the teeth impossible.

Having thus disclosed the invention, 10

I claim:

A dentrifice composition containing insoluble sodium metaphosphate reduced to fine particles so as to act as a polishing and cleansing agent.

15 RUDOLPH A. KUEVER. 

